I know what you mean fruity. I've got Lexmark and their ink is really expensive. Someone on here, sorry can't remember who, suggested this site. It is much cheaper and is just as good.
I buy all my ink cartridges on eBay, brand new (usually unboxed but still sealed), as micmak says, almost always free postage, delivered in a couple of days.
I've always found this site to be good, they do genuine or reconditioned and they've alway got offers on plus they sell virtually any thing you need print wise
http://www.choicestationery.co.uk/